I was over at my sisters yesterday doing a couple of odd jobs. On the wall in the living room she had one of those photo sets of New York in B&W pics. The bottom pic showed a street scene with a section of overhead railway. This I thought would make another easy module for someone? All that is required is a section of track carried on a set of hornby elevated piers over a street scene. A couple of buildings in the background to give a bit of height and a few hundred people on the pavements should do the trick!

At the speed you have started I think this will be an excellent project for you once you have finished the RTC one Dave!